All Stories
- 			 Earth Earth‘Island on Fire’ recounts enormous 18th century eruptionThe 18th century eruption of Iceland’s Laki volcano spewed sulfurous gases that briefly cooled the globe and probably contributed to the early deaths of tens of thousands of people. By Sid Perkins
- 			 Anthropology AnthropologyIsraeli fossil may recast history of first EuropeansNew find suggests humans mated with Neandertals in Middle East before taking on Europe. By Bruce Bower
- 			 Climate ClimateCentral American fires may intensify U.S. tornadoesSmoke originating from Central American fires may strengthen U.S. tornadoes. 
- 			 Science & Society Science & SocietySmell circuitry, stalled stem cells and more reader feedbackReaders discuss a journal's publishing practices, ask about the human sense of smell and weigh in on their favorite picks from our Top 25 stories of the year. 
- 			 Science & Society Science & SocietyContemplating the coming of the dronesEditor in Chief, Eva Emerson, contemplates the pros and cons of small drones flocking to our skies and the science behind them, discussed in this issue's feature on animal flight research. By Eva Emerson
- 			 Quantum Physics Quantum PhysicsTop 10 scientific mysteries for the 21st centurySolving the Top 10 scientific mysteries facing the 21st century will not be all fun but could be mostly games. 
- 			 Animals AnimalsHighway bridge noise disturbs fish’s hearingIn the lab, blacktail shiners had trouble hearing courtship growls over Alabama bridge traffic recordings. By Susan Milius
- 			 Animals AnimalsAnt-eating bears help plantsA complex web of interactions gives a boost to rabbitbrush plants when black bears consume ants. 
- 			 Neuroscience NeuroscienceImmune system may remember and adapt to stressMice without immune systems who receive stressed immune cells are less anxious and more social, suggesting that the immune system can adapt to stress. 
- 			 Animals AnimalsChameleon tongue power underestimatedA South African chameleon species can shoot its tongue with up to 41,000 watts of power per kilogram of muscle involved, a new study finds. By Susan Milius
- 			 Agriculture AgricultureSuperbugs take flight from cattle farmsWinds can carry antibiotics and drug-resistant bacteria from cattle farms to downwind communities. By Beth Mole
- 			 Ecosystems Ecosystems‘Earth: A New Wild’ puts people in the picturePBS nature series ‘Earth: A New Wild’ shows humans living with, and not off, their environments